file1[.]zip | Triage

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General

Target

file1.zip
Size

937KB
MD5

47ff275858445b5282d64e2ee044c634
SHA1

8b6a0e11ebdee9a91c0ba8669cb8e1afbf7c2f40
SHA256

6680825d8bbc199ad475008dab08d81529c1fe84eb0233abe32804f8a0241d3b
SHA512

1c35a3d2d9ac76fa81764c140fdbf916bb75825329a25197add39302ae92bb891674a010b18c4cb1acdc87da897865c9cac61edd07845c7a9420ce0e3b0091b5
SSDEEP

12288:XIpzeKwPpKPYj+4rfEPO/uoyT4BIg3anNPeMlUC2dz85XtDVv472wUo8rpvNRgFv:jKigPPMoCHceMlayx4/CxvgFfX

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/b5tnf9h4zy.dll

Files

file1.zip
.zip
MicrotrendAudio.exe
.exe windows:5 windows x86

f6da3c1d2ab55582d83acb7becffbf51

Code Sign

33:00:00:02:cf:a0:25:90:e3:13:04:ef:15:00:00:00:00:02:cf
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

12-05-2022 20:46

Not After

11-05-2023 20:46

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08-07-2011 20:59

Not After

08-07-2026 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

12:39:73:8a:f6:3b:9a:f1:f6:b4:46:ad:77:d7:81:0c:8a:f4:99:71:a6:d5:93:62:3b:49:00:0b:32:37:bd:75
Signer

Actual PE Digest

12:39:73:8a:f6:3b:9a:f1:f6:b4:46:ad:77:d7:81:0c:8a:f4:99:71:a6:d5:93:62:3b:49:00:0b:32:37:bd:75

Digest Algorithm

sha256

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Imports

b5tnf9h4zy

GetInstallDetailsPayload
SignalInitializeCrashReporting

advapi32

EventRegister
EventUnregister
EventWrite
RegCloseKey
RegGetValueW
RegOpenKeyExW
RegQueryValueExW
SystemFunction036

winmm

timeGetTime

kernel32

AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateEventW
CreateFileMappingW
CreateFileW
CreateThread
DecodePointer
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameExW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetFileAttributesW
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLogicalProcessorInformation
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadId
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
GetWindowsDirectoryW
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
MapViewOfFile
MultiByteToWideChar
OutputDebugStringA
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ResetEvent
RtlCaptureStackBackTrace
RtlUnwind
SetCurrentDirectoryW
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetProcessShutdownParameters
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
UnmapViewOfFile
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile

shell32

CommandLineToArgvW
SHGetFolderPathW
SHGetKnownFolderPath

ole32

CoCreateInstance
CoTaskMemFree

oleaut32

SysAllocString
SysAllocStringLen
SysFreeString
VariantClear

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 627KB - Virtual size: 626KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 94KB - Virtual size: 94KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 15KB - Virtual size: 77KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.00cfg
Size: 512B - Virtual size: 4B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 149B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.voltbl
Size: 512B - Virtual size: 124B

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 26KB - Virtual size: 25KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
b5tnf9h4zy.dll
.dll windows:4 windows x86

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

mscoree

_CorDllMain

Exports

Exports

GetInstallDetailsPayload
SignalInitializeCrashReporting

Sections

Size: 292KB - Virtual size: 292KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

Size: 512B - Virtual size: 140B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Size: 1024B - Virtual size: 992B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

0QD~
Size: 402KB - Virtual size: 402KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.text
Size: 375KB - Virtual size: 375KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1024B - Virtual size: 992B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f6da3c1d2ab55582d83acb7becffbf51

Code Sign

33:00:00:02:cf:a0:25:90:e3:13:04:ef:15:00:00:00:00:02:cfCertificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

12:39:73:8a:f6:3b:9a:f1:f6:b4:46:ad:77:d7:81:0c:8a:f4:99:71:a6:d5:93:62:3b:49:00:0b:32:37:bd:75Signer

Headers

DLL Characteristics

File Characteristics

Imports

b5tnf9h4zy

advapi32

winmm

kernel32

shell32

ole32

oleaut32

Exports

Exports

Sections

.text Size: 627KB - Virtual size: 626KB

.rdata Size: 94KB - Virtual size: 94KB

.data Size: 15KB - Virtual size: 77KB

.00cfg Size: 512B - Virtual size: 4B

.tls Size: 512B - Virtual size: 149B

.voltbl Size: 512B - Virtual size: 124B

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 26KB - Virtual size: 25KB

dae02f32a21e03ce65412f6e56942daa

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Exports

Exports

Sections

Size: 292KB - Virtual size: 292KB

Size: 512B - Virtual size: 140B

Size: 1024B - Virtual size: 992B

Size: 512B - Virtual size: 16B

0QD~ Size: 402KB - Virtual size: 402KB

.text Size: 375KB - Virtual size: 375KB

.rsrc Size: 1024B - Virtual size: 992B

33:00:00:02:cf:a0:25:90:e3:13:04:ef:15:00:00:00:00:02:cf
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

12:39:73:8a:f6:3b:9a:f1:f6:b4:46:ad:77:d7:81:0c:8a:f4:99:71:a6:d5:93:62:3b:49:00:0b:32:37:bd:75
Signer

.text
Size: 627KB - Virtual size: 626KB

.rdata
Size: 94KB - Virtual size: 94KB

.data
Size: 15KB - Virtual size: 77KB

.00cfg
Size: 512B - Virtual size: 4B

.tls
Size: 512B - Virtual size: 149B

.voltbl
Size: 512B - Virtual size: 124B

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 26KB - Virtual size: 25KB

0QD~
Size: 402KB - Virtual size: 402KB

.text
Size: 375KB - Virtual size: 375KB

.rsrc
Size: 1024B - Virtual size: 992B